add mini retirement info

Author: PatrickFarley

articles/ai-foundry/openai/includes/retirement/models.md

@@ -70,6 +70,8 @@ ms.custom: references_regions, build-2025
 | `sora`                         | 2025-05-02   | Preview             | No earlier than October 15, 2025 |                                      |
 | `dalle-3`                      | 3            | Generally Available | No earlier than October 31, 2025 |                                      |
 | `gpt-image-1`                  | 2025-04-15   | Preview             | No earlier than October 31, 2025 |                                      |
+| `gpt-image-1-mini`                  | 2025-10-06   | Preview             | No earlier than October 31, 2025 |                                      |
+
 
 # [Embedding](#tab/embedding)